From ddc67f47c68584c569bb47a58a3fea16795cb7cf Mon Sep 17 00:00:00 2001
From: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
Date: Tue, 16 Dec 2008 23:50:38 -0200
Subject: [PATCH] Category element in atom entry

Now, there are categories associated to an entry. They can be added and
retrieved just like retrieving authors.
---
 atom/entry.c            | 51 ++++++++++++++++++++++++++++++++++++++++-
 include/atompub/entry.h |  3 +++
 2 files changed, 53 insertions(+), 1 deletion(-)

diff --git a/atom/entry.c b/atom/entry.c
index 99a4172..d4732c3 100644
--- a/atom/entry.c
+++ b/atom/entry.c
@@ -29,12 +29,16 @@ struct _atom_entry
   AtomID *id;
   char *title;
   GPtrArray *authors;
+  GPtrArray *categories;
   char *summary;
 };
 
 void atom_entry_author_add (AtomEntry *, AtomPerson *);
 static void atom_entry_authors_delete (AtomEntry *);
 
+void atom_entry_category_add (AtomEntry *, AtomCategory *);
+static void atom_entry_categories_delete (AtomEntry *);
+
 AtomEntry *
 atom_entry_new (char *title, AtomPerson *author)
 {
@@ -44,6 +48,7 @@ atom_entry_new (char *title, AtomPerson *author)
   entry->id = NULL;
   entry->title = g_strdup (title);
   entry->authors = NULL;
+  entry->categories = NULL;
   atom_entry_author_add (entry, author);
   entry->summary = NULL;
   return entry;
@@ -82,6 +87,8 @@ atom_entry_new_data_len (char *data, size_t len)
         entry->summary = g_strdup (content);
       else if (!xmlStrcmp (child->name, "author"))
         atom_entry_author_add (entry, atom_person_new_from_xmlnode (child));
+      else if (!xmlStrcmp (child->name, "category"))
+        atom_entry_category_add (entry, atom_category_new_from_xmlnode (child));
       else
         xmlFree (content);
     }
@@ -99,6 +106,8 @@ atom_entry_delete (AtomEntry *entry)
     g_free (entry->title);
   if (entry->authors)
     atom_entry_authors_delete (entry);
+  if (entry->categories)
+    atom_entry_categories_delete (entry);
   if (entry->summary)
     g_free (entry->summary);
   g_slice_free (AtomEntry, entry);
@@ -161,6 +170,37 @@ atom_entry_authors_delete (AtomEntry *entry)
   g_ptr_array_free (entry->authors, TRUE);
 }
 
+void
+atom_entry_categories (AtomEntry *entry, AtomCategory *** categories,
+                       size_t *len)
+{
+  if (len)
+    *len = entry->categories->len;
+  if (categories)
+    *categories = entry->categories->pdata;
+}
+
+void
+atom_entry_category_add (AtomEntry *entry, AtomCategory *category)
+{
+  g_ptr_array_add (entry->categories, category);
+  if (entry->categories == NULL)
+    {
+      entry->categories = g_ptr_array_new ();
+    }
+  g_ptr_array_add (entry->categories, category);
+}
+
+static void
+atom_entry_categories_delete (AtomEntry *entry)
+{
+  size_t len = entry->categories->len;
+  int i;
+  for (i = 0; i < len; i++)
+    atom_category_delete (g_ptr_array_index (entry->categories, i));
+  g_ptr_array_free (entry->categories, TRUE);
+}
+
 char *
 atom_entry_summary (AtomEntry *entry)
 {
@@ -183,6 +223,7 @@ atom_entry_update_xmlnode (AtomEntry *entry)
   xmlNodePtr title;
   xmlNodePtr summary;
   xmlNodePtr author;
+  xmlNodePtr cat;
   int i;
   if (entry->doc == NULL)
     {
@@ -203,7 +244,8 @@ atom_entry_update_xmlnode (AtomEntry *entry)
           if (!xmlStrcmp (child->name, "id") ||
               !xmlStrcmp (child->name, "title") ||
               !xmlStrcmp (child->name, "summary") ||
-              !xmlStrcmp (child->name, "author"))
+              !xmlStrcmp (child->name, "author") ||
+              !xmlStrcmp (child->name, "category"))
             {
               xmlUnlinkNode (child);
               xmlFreeNode (child);
@@ -222,6 +264,13 @@ atom_entry_update_xmlnode (AtomEntry *entry)
       author = atom_person_to_xmlnode (person, "author");
       xmlAddChild (root, author);
     }
+  for (i = 0; entry->categories && i < entry->categories->len; i++)
+    {
+      AtomCategory *category;
+      category = g_ptr_array_index (entry->categories, i);
+      cat = atom_category_to_xmlnode (category, "category");
+      xmlAddChild (root, category);
+    }
 }
 
 void
diff --git a/include/atompub/entry.h b/include/atompub/entry.h
index 51de991..ce6bd12 100644
--- a/include/atompub/entry.h
+++ b/include/atompub/entry.h
@@ -22,6 +22,7 @@
 
 #include <sys/types.h>
 #include <atompub/person.h>
+#include <atompub/category.h>
 #include <atompub/id.h>
 
 typedef struct _atom_entry AtomEntry;
@@ -35,6 +36,8 @@ char * atom_entry_title (AtomEntry *);
 void atom_entry_title_set (AtomEntry *, char *);
 void atom_entry_authors (AtomEntry *, AtomPerson ***, size_t *);
 void atom_entry_author_add (AtomEntry *, AtomPerson *);
+void atom_entry_categories (AtomEntry *, AtomCategory ***, size_t *);
+void atom_entry_category_add (AtomEntry *, AtomCategory *);
 char * atom_entry_summary (AtomEntry *);
 void atom_entry_summary_set (AtomEntry *, char *);
 void atom_entry_string (AtomEntry *, char **, size_t *);
-- 
2.20.1